refactor(nvim): rewrite goto plugin (now called follow)

`lua/dotfiles/follow.lua` provides an engine to register "followable
entities" like URL, wiki-links etc and can be easily expanded.

The engine provides a function to navigate between followable entities
and a function to edit them inside neovim.

1 files changed, 9 insertions, 19 deletions

diff --git a/plugin/50-notes.lua b/plugin/50-notes.lua
index 30c655c..4e0494c 100644
--- a/plugin/50-notes.lua
+++ b/plugin/50-notes.lua
@@ -23,7 +23,7 @@
 --   `<Leader>nn`: fuzzy-find notes by tags
 --   `<Leader>nf`: fuzzy-find notes by file name
 --   `<Leader>ng`: fuzzy-find notes by content
---   `<Tab>` / `<S-Tab>` (in notes buffers): go to next/previous URL or wiki-link
+--   `<Tab>` / `<S-Tab>` (in notes buffers): go to next/previous followable entity
 --
 
 if vim.env.NOTES_DIR == nil then
@@ -33,8 +33,10 @@ end
 local notes_dir = vim.fs.normalize(vim.env.NOTES_DIR)
 local tagfile = vim.fs.joinpath(vim.fn.stdpath("state"), "notes-tags")
 
+local follow = require("dotfiles.follow")
+
 ----------------------------------------------------------------------------------------------------
--- Tags ---------------------------------------------------------------------------------------------
+-- Tags --------------------------------------------------------------------------------------------
 ----------------------------------------------------------------------------------------------------
 
 -- Generates ctags for (markdown) files in `notes_dir`
@@ -417,36 +419,24 @@ local function rename_section_command(opts)
 end
 
 ----------------------------------------------------------------------------------------------------
--- Navigation --------------------------------------------------------------------------------------
-----------------------------------------------------------------------------------------------------
-
--- Moves the cursor to the start of the next (or previous, when `backward`) URL or `[[wiki-link]]`,
--- wrapping around the buffer. "URL" means a `scheme://…` target, matching the follow engine in
--- 50-goto.lua.
-local function goto_url(backward)
-	local pattern = [[\v(\a[0-9A-Za-z+.-]*://\S+|\[\[.{-}\]\])]]
-	vim.fn.search(pattern, backward and "bw" or "w")
-end
-
-----------------------------------------------------------------------------------------------------
 -- Buffer init & pickers ---------------------------------------------------------------------------
 ----------------------------------------------------------------------------------------------------
 
 -- Initializes a notes buffer
 -- * Include generated notes tags in 'tags' option
 -- * Enable wikilink completion
--- * Map <Tab>/<S-Tab> to jump between URLs/wiki-links
+-- * Map <Tab>/<S-Tab> to jump between followable entities
 local function init_notes_buffer()
 	if not vim.tbl_contains(vim.opt_local.tags:get(), tagfile) then
 		vim.opt_local.tags:append(tagfile)
 	end
 	vim.bo.omnifunc = "v:lua.dotfiles_wikilink_source"
 	vim.keymap.set("n", "<Tab>", function()
-		goto_url(false)
-	end, { buffer = true, desc = "Go to next URL/wiki-link" })
+		follow.next(false)
+	end, { buffer = true, desc = "Go to next followable entity" })
 	vim.keymap.set("n", "<S-Tab>", function()
-		goto_url(true)
-	end, { buffer = true, desc = "Go to previous URL/wiki-link" })
+		follow.next(true)
+	end, { buffer = true, desc = "Go to previous followable entity" })
 end
 
 local function find_notes_by_tag()